Implement Proc#parameters

1 files changed, 12 insertions, 0 deletions

diff --git a/mrbgems/mruby-proc-ext/test/proc.rb b/mrbgems/mruby-proc-ext/test/proc.rb
index 1565873a0..bca9b463a 100644
--- a/mrbgems/mruby-proc-ext/test/proc.rb
+++ b/mrbgems/mruby-proc-ext/test/proc.rb
@@ -43,6 +43,18 @@ assert('Proc#curry') do
   assert_raise(ArgumentError) { b.curry(1) }
 end
 
+assert('Proc#parameters') do
+  assert_equal([], Proc.new {}.parameters)
+  assert_equal([], Proc.new {||}.parameters)
+  assert_equal([[:opt, :a]], Proc.new {|a|}.parameters)
+  assert_equal([[:req, :a]], lambda {|a|}.parameters)
+  assert_equal([[:opt, :a]], lambda {|a=nil|}.parameters)
+  assert_equal([[:req, :a]], ->(a){}.parameters)
+  assert_equal([[:rest, :a]], Proc.new {|*a|}.parameters)
+  assert_equal([[:opt, :a], [:opt, :b], [:opt, :c], [:opt, :d], [:rest, :e], [:opt, :f], [:opt, :g], [:block, :h]], Proc.new {|a,b,c=:c,d=:d,*e,f,g,&h|}.parameters)
+  assert_equal([[:req, :a], [:req, :b], [:opt, :c], [:opt, :d], [:rest, :e], [:req, :f], [:req, :g], [:block, :h]], lambda {|a,b,c=:c,d=:d,*e,f,g,&h|}.parameters)
+end
+
 assert('Proc#to_proc') do
   proc = Proc.new {}
   assert_equal proc, proc.to_proc